Vespa Grande starter clutch.

I just bought BRAND NEW starter clutch pads from treatland (For a Vespa grande), installed them EXACTLY like treatland says to. The clutch pads don't engage even though they are trying to, they make a weird rattling sound while they try to engage. We destroyed another set of pads while trying to do the same thing nearly a month ago. What is happening? We are too scared to keep trying to get them to engage.